@article{1077490939,
author = {Ketchum, P. W.},
title = {Infinite systems of linear equations and expansions of analytic functions},
journal = {Duke Math. J.},
volume = {4},
number = {1},
year = {1938},
pages = { 668-677},
language = {en},
url = {http://dml.mathdoc.fr/item/1077490939}
}
Ketchum, P. W. Infinite systems of linear equations and expansions of analytic functions. Duke Math. J., Tome 4 (1938) no. 1, pp. 668-677. http://gdmltest.u-ga.fr/item/1077490939/